Acclaimed TV and film director Garry Marshall died Tuesday from pneumonia complications after he suffered a stroke, his publicist confirmed. He was 81.

>> TV, movie director Garry Marshall dead at 81

>> PHOTOS: Notable deaths in 2016

Celebrities took to social media to pay tribute to Marshall, best known for his work on "Happy Days," "Pretty Woman" and "The Princess Diaries."

>> Click here or scroll down to see what they were saying

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools